Muscles located in the walls of the small intestine help push digested material along. Muscles located in the walls of arteries help push blood along. Based on this info, which of tje following statements are correct?
A both sets of muscles are involuntary and smooth.
B bothe sets of muscles are voluntary and smooth.
C both sets of muscles are smooth, although one is voluntary and the other set is involuntary.
D both sets are voluntary although one is striated and the other set is smooth
